Hi, On 01/03/2011 11:59 AM, Ali Abbas wrote: [...] > WARNING: Rosdeps [u'swi_prolog_sgml', u'swi_prolog_clib', > u'swi_prolog_semweb', u'swi_prolog', u'swi_prolog_odbc', u'swi_prolog_http', > u'swi_prolog_xpce'] could not be resolved > [ rosmake ] rosdep check passed all system dependencies in packages which platform do you use? The Prolog packages seem to be available only for i386 and amd64. Can you manually install the packages using apt-get, or does `aptitude search swi-prolog` show these packages? This is definitely a problem with either Ubuntu or rosdep. You can, however, manually install Prolog from source (see www.swi-prolog.org for instructions) and then ignore the rosdep complaints. rosprolog is only a rather shallow wrapper around the Prolog binary that allows to launch packages in the KnowRob stack. Before launching a package, rosprolog also locates and initializes all required ROS packages. best, Moritz -- Dipl.-Ing. Moritz Tenorth | tenorth@cs.tum.edu Technische Universität München | Karlstr. 45 80333 München | Germany ias.cs.tum.edu/people/tenorth | Tel: +49 89 289-26912